<template>
	<el-skeleton animated :loading="loading">
		<template #template>
			<el-card>
				<el-skeleton-item variant="h3" style="width: 50%" />
				<div class="margin-top">
					<el-skeleton-item variant="text" />
					<el-skeleton-item variant="text" class="margin-top" />
					<el-skeleton-item variant="text" class="margin-top" />
					<el-skeleton-item variant="text" class="margin-top" />
				</div>
			</el-card>
		</template>
		<template #default>
			<el-card class="flex-sub chart-item-container" :body-style="{ padding: 0 }" shadow="never">
				<template #header>
					<div class="text-bold">招生渠道分析图</div>
				</template>
				<div ref="channelsChart" class="chart-item"></div>
			</el-card>
		</template>
	</el-skeleton>
</template>

<script lang="ts">
import { useEcharts } from '@/hooks'
import { defineComponent, nextTick, onBeforeUnmount, onMounted, ref } from 'vue'
import { dispose } from 'echarts'
export default defineComponent({
	name: 'EnrollmentChannelsChart',
	setup() {
		const loading = ref(true)
		const channelsChart = ref<HTMLDivElement | null>(null)
		const init = () => {
			const option = {
				grid: {
					left: '12%',
					right: '5%',
					top: '5%',
					bottom: '3%',
					containLabel: true
				},
				tooltip: {
					trigger: 'axis'
				},
				series: [
					{
						name: '访问来源',
						type: 'pie',
						radius: ['40%', '70%'],
						avoidLabelOverlap: false,
						itemStyle: {
							borderRadius: 10,
							borderColor: '#fff',
							borderWidth: 2
						},
						emphasis: {
							label: {
								show: true,
								fontSize: '16',
								fontWeight: 'bold'
							}
						},
						labelLine: {
							show: true,
							length: 5,
							length2: 5,
							smooth: true
						},
						data: [
							{ value: 1969, name: '线上' },
							{ value: 743, name: '互推' },
							{ value: 1594, name: '电话' },
							{ value: 1347, name: '地推' },
							{ value: 635, name: '直播' }
						]
					}
				]
			}
			setTimeout(() => {
				loading.value = false
				nextTick(() => {
					useEcharts(channelsChart.value as HTMLDivElement).setOption(option)
				})
			}, 100)
		}
		const updateChart = () => {
			useEcharts(channelsChart.value as HTMLDivElement).resize()
		}
		onMounted(init)
		return {
			loading,
			channelsChart,
			updateChart
		}
	}
})
</script>

<style lang="scss" scoped>
.chart-item-container {
	width: 100%;
	height: 215px;
	.chart-item {
		height: 180px;
	}
}
</style>
